Pulse Width Measure | VXI VT1538A specs

Auto-Gating(adaptive aperture)	1mSec to 1Sec for Frequency
	1mSec to 1Sec for Perid (using SENS:PER:RANGE 1)
	4mSec to 4Sec for Perid (using SENS:PER:RANGE 4)

Rotational Velocity Measure	Characteristics	Extra Tooth Wheel or Missing Tooth Wheel

	Range in RPS	------1-------	to 100---------,---000--------
	Range in RPS	nt eet h	nt ee th
		nt eet h	nt ee th
	Accuracy		.01%
	Resolution in RPS	(nt eet h × f)2
		--4.194--------------MHz------------where f is nt ee th per second
	Minimum Pulse Width	500 nS

Pulse Width Measure	Periods Averaged	1 to 255
	Range	5 μS to 1 S
	Accuracy	±(250nS+0.1%)
	Resolution	59.6 nSec

Frequency Source	Range	64 Hz to 40 KHz Square Wave
		128 Hz to 40 KHz other shapes
	Accuracy	0.01%
	Resolution	2
		fo u t
		-------------------------
		4.194MHz

Pulse Source	Range	7.87	μsec to 1/f-7.87 msec continuous pulse
		7.87	μsec to 7.812 msec single pulse per trigger
	Accuracy		0.01%
	Resolution		238.4 nsec

Agilent E1538A Enhanced Frequency/Totalize/PWM SCP 79

Image 83

VXI VT1538A user manual Pulse Width Measure

Contents

VT1538A VXI Technology, Inc Introduction Support Resources User’s and Scpi Programming Manual Page About this Manual Agilent E1538A Enhanced Frequency/Totalize/PWM SCP Introduction Identifying the Plug-on Important Switch Location and Example Settings Setting Configuration Switches Connecting To The Terminal Module Installation E1419A Option 11 Terminal Module Connections Recommended Signal Connections Recommended Connections and Voltage Limits Input and Output Characteristics E1538A Input/Output Characteristics VRS Mode Input Operation SCP Channels 0 & 1 only Shows the VRS mode input characteristics Programming With Scpi Commands Setting the Input Threshold Level Configuring I/O Direction Inppol Norm Determining the Input Threshold Level To set channels 40 through 43 to input digital states Reading Static Digital State Init SENSDATACVT? @44 Totalize Positive or Negative Edge State Changes About Period Frequency Measurements SENSDATACVT? @45 SENSDATACVT? @45 Agilent E1538A Enhanced Frequency/Totalize/PWM SCP Agilent E1538A Enhanced Frequency/Totalize/PWM SCP Sensfuncquad 0,@148,149 Sense Quadrature Position RPS Sense Rotational Velocity Example of Rotational Velocity Sense Output Static Digital State Controlling Output Polarity Variable Width Pulse Per Trigger Variable Width Pulse Train PWM Variable Frequency Fixed Width Pulse Train FM Variable Frequency Square-Wave Pulse Train Rotationally Positioned Pulse Output Rotational Pulse Command Usage Algupdate Init RST Sensfuncrvel 12,MISS,@140 Example of variable position, preset width Variable Position, Width Preset by Time Example of variable width by angle, preset position Fixed Position, Variable Width by Angle Example of variable width by time, preset position ALGSCALAR’ALG1’,’Width2’,.010 Stepping mode values Stepper Motor Control Use the command Sensfuncvolt @100 Full Step Mode, Full and Half Speed, 4-Channel Page RST and *TST important Command Syntax For newer Units only Scpi Command Reference Command Syntax For newer Units only Discussed Comments INPutPOLarityINPutPOLarity? Parameters INPutTHResholdLEVel? Level can be set to a resolutionINPutTHResholdLEVel Send with VXIplug&play Function hpe14XXcmdReal64Q OUTPutPOLarityOUTPutPOLarity? SENSeFREQuencyAPERture SENSeFREQuencyLIMitLOWer Related Commands SensfreqaperSENSeFREQuencyAPERture? Init SENSeFUNCtionCONDition Related Commands INPutPOLaritySENSeFREQuencyLIMitLOWer? SENSeFUNCtionPERiod SENSeFUNCtionFREQuency SENSeFUNCtionQUADrature SENSeFUNCtionPWIDth SENSeFUNCtionRVELocity RPS SENSeFUNCtionTOTalize SENSePERiodAPERture SENSePERiodLIMitUPPer SENSePERiodAPERture? Init SENSePERiodMODE SENSePERiodLIMitUPPer? SENSePERiodNPERiods Related Commands SENSePERiodMODESENSePERiodMODE? Send with VXIplug&play Function hpe14XXcmdInt32Q SENSePERiodNPERiods?SENSePERiodRANGeUPPer RST Condition is Send with VXIplug&play Function hpe14XXcmd SENSeTOTalizeRESetMODESENSePERiodRANGeUPPer? SOURceFMSTATe SENSeTOTalizeRESetMODE? Send with VXIplug&play Function hpe14XXcmdInt16Q SOURceFMSTATe? SOURceFUNCtionRPULse SOURceFUNCtionSHAPePULSe SOURceFUNCtionSHAPeCONDition Comments Send with VXIplug&play Function hpe14XXcmd SOURceFUNCtionSHAPeSQUareSOURceFUNCtionSTEPper Relationship of minvel, and maxvel Usage See Stepper Motor Control on SOURcePULMSTATe SOURcePULSePERiod SOURcePULMSTATe? SOURcePULSeWIDTh SOURcePULSePERiod? 33,554,430 to 33,554,430 SOURcePULSeWIDTh?SOURceRPULsePOSitionANGLe Usage SOURceRPULsePOSitionANGLe?SOURRPULseVARType SOURceRPULseWIDThANGLe SOURRPULseVARType? 00000787 to SOURceRPULseWIDThANGLe?SOURceRPULseWIDThTIME SOURceRPULseWIDThTIME? General Specifications Specifications Frequency Measurement Pulse Width Measure Rotational Pulse Source